(progn
(eval-when-compile
(%compile-defmacro 'defmacro
- '(lambda (name args &rest body)
- `(eval-when-compile
- (%compile-defmacro ',name
- '(lambda ,(mapcar (lambda (x)
- (if (eq x '&body)
- '&rest
- x))
- args)
- ,@body))))))
+ '(function
+ (lambda (name args &rest body)
+ `(eval-when-compile
+ (%compile-defmacro ',name
+ '(function
+ (lambda ,(mapcar #'(lambda (x)
+ (if (eq x '&body)
+ '&rest
+ x))
+ args)
+ ,@body))))))))
(defmacro declaim (&rest decls)
`(eval-when-compile
,@(mapcar (lambda (decl) `(!proclaim ',decl)) decls)))
- (declaim (constant nil t) (special t nil))
- (setq nil 'nil)
- (setq t 't)
+ (defmacro defconstant (name value &optional docstring)
+ `(progn
+ (declaim (special ,name))
+ (declaim (constant ,name))
+ (setq ,name ,value)
+ ,@(when (stringp docstring) `((oset ',name "vardoc" ,docstring)))
+ ',name))
+
+ (defconstant t 't)
+ (defconstant nil 'nil)
+ (js-vset "nil" nil)
+
+ (defmacro lambda (args &body body)
+ `(function (lambda ,args ,@body)))
(defmacro when (condition &body body)
`(if ,condition (progn ,@body) nil))
(defmacro defun (name args &rest body)
`(progn
- (declaim (non-overridable ,name))
(fset ',name
(named-lambda ,(symbol-name name) ,args
,@(if (and (stringp (car body)) (not (null (cdr body))))
(defun second (x) (cadr x))
(defun third (x) (caddr x))
(defun fourth (x) (cadddr x))
+ (defun rest (x) (cdr x))
(defun list (&rest args) args)
(defun atom (x)
(revappend list '()))
(defmacro psetq (&rest pairs)
- (let (;; For each pair, we store here a list of the form
+ (let ( ;; For each pair, we store here a list of the form
;; (VARIABLE GENSYM VALUE).
(assignments '()))
(while t
`(let ,(mapcar #'cdr assignments)
(setq ,@(!reduce #'append (mapcar #'butlast assignments) '())))))
+ (defmacro do (varlist endlist &body body)
+ `(block nil
+ (let ,(mapcar (lambda (x) (list (first x) (second x))) varlist)
+ (while t
+ (when ,(car endlist)
+ (return (progn ,(cdr endlist))))
+ (tagbody ,@body)
+ (psetq
+ ,@(apply #'append
+ (mapcar (lambda (v)
+ (and (consp (cddr v))
+ (list (first v) (third v))))
+ varlist)))))))
+
+ (defmacro do* (varlist endlist &body body)
+ `(block nil
+ (let* ,(mapcar (lambda (x) (list (first x) (second x))) varlist)
+ (while t
+ (when ,(car endlist)
+ (return (progn ,(cdr endlist))))
+ (tagbody ,@body)
+ (setq
+ ,@(apply #'append
+ (mapcar (lambda (v)
+ (and (consp (cddr v))
+ (list (first v) (third v))))
+ varlist)))))))
+
(defun list-length (list)
(let ((l 0))
(while (not (null list))
(concat-two s1 s2))
(defun mapcar (func list)
- (if (null list)
- '()
- (cons (funcall func (car list))
- (mapcar func (cdr list)))))
+ (let* ((head (cons 'sentinel nil))
+ (tail head))
+ (while (not (null list))
+ (let ((new (cons (funcall func (car list)) nil)))
+ (rplacd tail new)
+ (setq tail new
+ list (cdr list))))
+ (cdr head)))
(defun identity (x) x)
+ (defun constantly (x)
+ (lambda (&rest args)
+ x))
+
(defun copy-list (x)
(mapcar #'identity x))
(- x #\0)
nil))
+ (defun digit-char (weight)
+ (and (<= 0 weight 9)
+ (char "0123456789" weight)))
+
(defun subseq (seq a &optional b)
(cond
((stringp seq)
(t
(error "Unsupported argument."))))
- (defun parse-integer (string)
- (let ((value 0)
- (index 0)
- (size (length string)))
- (while (< index size)
- (setq value (+ (* value 10) (digit-char-p (char string index))))
- (incf index))
- value))
-
(defun some (function seq)
(cond
((stringp seq)
(error "Wrong argument type! it should be a symbol"))
(oget x "vardoc"))))
+ (defmacro multiple-value-bind (variables value-from &body body)
+ `(multiple-value-call (lambda (&optional ,@variables &rest ,(gensym))
+ ,@body)
+ ,value-from))
+
+ (defmacro multiple-value-list (value-from)
+ `(multiple-value-call #'list ,value-from))
+
;; Packages
(defvar *package-list* nil)
;; This function is used internally to initialize the CL package
;; with the symbols built during bootstrap.
(defun %intern-symbol (symbol)
- (let ((symbols (%package-symbols *common-lisp-package*)))
- (oset symbol "package" *common-lisp-package*)
+ (let* ((package
+ (if (in "package" symbol)
+ (find-package-or-fail (oget symbol "package"))
+ *common-lisp-package*))
+ (symbols (%package-symbols package)))
+ (oset symbol "package" package)
+ (when (eq package *keyword-package*)
+ (oset symbol "value" symbol))
(oset symbols (symbol-name symbol) symbol)))
- (defun %find-symbol (name package)
- (let ((package (find-package-or-fail package)))
- (let ((symbols (%package-symbols package)))
- (if (in name symbols)
- (cons (oget symbols name) t)
- (dolist (used (package-use-list package) (cons nil nil))
- (let ((exports (%package-external-symbols used)))
- (when (in name exports)
- (return-from %find-symbol
- (cons (oget exports name) t)))))))))
-
(defun find-symbol (name &optional (package *package*))
- (car (%find-symbol name package)))
+ (let* ((package (find-package-or-fail package))
+ (externals (%package-external-symbols package))
+ (symbols (%package-symbols package)))
+ (cond
+ ((in name externals)
+ (values (oget externals name) :external))
+ ((in name symbols)
+ (values (oget symbols name) :internal))
+ (t
+ (dolist (used (package-use-list package) (values nil nil))
+ (let ((exports (%package-external-symbols used)))
+ (when (in name exports)
+ (return (values (oget exports name) :inherit)))))))))
(defun intern (name &optional (package *package*))
(let ((package (find-package-or-fail package)))
- (let ((result (%find-symbol name package)))
- (if (cdr result)
- (car result)
+ (multiple-value-bind (symbol foundp)
+ (find-symbol name package)
+ (if foundp
+ (values symbol foundp)
(let ((symbols (%package-symbols package)))
(oget symbols name)
(let ((symbol (make-symbol name)))
(when (eq package *keyword-package*)
(oset symbol "value" symbol)
(export (list symbol) package))
- (oset symbols name symbol)))))))
+ (oset symbols name symbol)
+ (values symbol nil)))))))
(defun symbol-package (symbol)
(unless (symbolp symbol)
(defun concat-two (s1 s2)
(concatenate 'string s1 s2))
- (defun setcar (cons new)
- (setf (car cons) new))
- (defun setcdr (cons new)
- (setf (cdr cons) new))
-
(defun aset (array idx value)
(setf (aref array idx) value)))
(aset v i x)
(incf i))))
+#+ecmalisp
+(progn
+ (defun values-list (list)
+ (values-array (list-to-vector list)))
+
+ (defun values (&rest args)
+ (values-list args)))
+
+
;;; Like CONCAT, but prefix each line with four spaces. Two versions
;;; of this function are available, because the Ecmalisp version is
;;; very slow and bootstraping was annoying.
do (write-string " ")
do (write-line line)))))
-
(defun integer-to-string (x)
(cond
((zerop x)
(while (not (zerop x))
(push (mod x 10) digits)
(setq x (truncate x 10)))
- (join (mapcar (lambda (d) (string (char "0123456789" d)))
- digits))))))
+ (mapconcat (lambda (x) (string (digit-char x)))
+ digits)))))
;;; Wrap X with a Javascript code to convert the result from
(defun prin1-to-string (form)
(cond
((symbolp form)
- (if (cdr (%find-symbol (symbol-name form) *package*))
- (symbol-name form)
- (let ((package (symbol-package form))
- (name (symbol-name form)))
- (concat (cond
- ((null package) "#")
- ((eq package (find-package "KEYWORD")) "")
- (t (package-name package)))
- ":" name))))
+ (multiple-value-bind (symbol foundp)
+ (find-symbol (symbol-name form) *package*)
+ (if (and foundp (eq symbol form))
+ (symbol-name form)
+ (let ((package (symbol-package form))
+ (name (symbol-name form)))
+ (concat (cond
+ ((null package) "#")
+ ((eq package (find-package "KEYWORD")) "")
+ (t (package-name package)))
+ ":" name)))))
((integerp form) (integer-to-string form))
((stringp form) (concat "\"" (escape-string form) "\""))
((functionp form)
(defun %read-char (stream)
(and (< (cdr stream) (length (car stream)))
(prog1 (char (car stream) (cdr stream))
- (setcdr stream (1+ (cdr stream))))))
+ (rplacd stream (1+ (cdr stream))))))
(defun whitespacep (ch)
(or (char= ch #\space) (char= ch #\newline) (char= ch #\tab)))
(intern name package)
(find-symbol name package))))
+
+(defun !parse-integer (string junk-allow)
+ (block nil
+ (let ((value 0)
+ (index 0)
+ (size (length string))
+ (sign 1))
+ (when (zerop size) (return (values nil 0)))
+ ;; Optional sign
+ (case (char string 0)
+ (#\+ (incf index))
+ (#\- (setq sign -1)
+ (incf index)))
+ ;; First digit
+ (unless (and (< index size)
+ (setq value (digit-char-p (char string index))))
+ (return (values nil index)))
+ (incf index)
+ ;; Other digits
+ (while (< index size)
+ (let ((digit (digit-char-p (char string index))))
+ (unless digit (return))
+ (setq value (+ (* value 10) digit))
+ (incf index)))
+ (if (or junk-allow
+ (= index size)
+ (char= (char string index) #\space))
+ (values (* sign value) index)
+ (values nil index)))))
+
+#+ecmalisp
+(defun parse-integer (string)
+ (!parse-integer string nil))
+
(defvar *eof* (gensym))
(defun ls-read (stream)
(skip-whitespaces-and-comments stream)
(read-sharp stream))
(t
(let ((string (read-until stream #'terminalp)))
- (if (every #'digit-char-p string)
- (parse-integer string)
- (read-symbol string)))))))
+ (or (values (!parse-integer string nil))
+ (read-symbol string)))))))
(defun ls-read-from-string (string)
(ls-read (make-string-stream string)))
;;; too. The respective real functions are defined in the target (see
;;; the beginning of this file) as well as some primitive functions.
-(defvar *compilation-unit-checks* '())
+;;; A Form can return a multiple values object calling VALUES, like
+;;; values(arg1, arg2, ...). It will work in any context, as well as
+;;; returning an individual object. However, if the special variable
+;;; `*multiple-value-p*' is NIL, is granted that only the primary
+;;; value will be used, so we can optimize to avoid the VALUES
+;;; function call.
+(defvar *multiple-value-p* nil)
+
(defun make-binding (name type value &optional declarations)
(list name type value declarations))
(defun binding-declarations (b) (fourth b))
(defun set-binding-value (b value)
- (setcar (cddr b) value))
+ (rplaca (cddr b) value))
(defun set-binding-declarations (b value)
- (setcar (cdddr b) value))
+ (rplaca (cdddr b) value))
(defun push-binding-declaration (decl b)
(set-binding-declarations b (cons decl (binding-declarations b))))
(defun push-to-lexenv (binding lexenv namespace)
(ecase namespace
- (variable (setcar lexenv (cons binding (car lexenv))))
- (function (setcar (cdr lexenv) (cons binding (cadr lexenv))))
- (block (setcar (cddr lexenv) (cons binding (caddr lexenv))))
- (gotag (setcar (cdddr lexenv) (cons binding (cadddr lexenv))))))
+ (variable (rplaca lexenv (cons binding (car lexenv))))
+ (function (rplaca (cdr lexenv) (cons binding (cadr lexenv))))
+ (block (rplaca (cddr lexenv) (cons binding (caddr lexenv))))
+ (gotag (rplaca (cdddr lexenv) (cons binding (cadddr lexenv))))))
(defun extend-lexenv (bindings lexenv namespace)
(let ((env (copy-lexenv lexenv)))
(defun extend-local-env (args)
(let ((new (copy-lexenv *environment*)))
(dolist (symbol args new)
- (let ((b (make-binding symbol 'lexical-variable (gvarname symbol))))
+ (let ((b (make-binding symbol 'variable (gvarname symbol))))
(push-to-lexenv b new 'variable)))))
;;; Toplevel compilations
(defun %compile-defmacro (name lambda)
(toplevel-compilation (ls-compile `',name))
- (push-to-lexenv (make-binding name 'macro lambda) *environment* 'function))
+ (push-to-lexenv (make-binding name 'macro lambda) *environment* 'function)
+ name)
(defun global-binding (name type namespace)
(or (lookup-in-lexenv name *environment* namespace)
(constant
(dolist (name (cdr decl))
(let ((b (global-binding name 'variable 'variable)))
- (push-binding-declaration 'constant b))))
- (non-overridable
- (dolist (name (cdr decl))
- (let ((b (global-binding name 'function 'function)))
- (push-binding-declaration 'non-overridable b))))))
+ (push-binding-declaration 'constant b))))))
#+ecmalisp
(fset 'proclaim #'!proclaim)
(define-compilation if (condition true false)
(concat "(" (ls-compile condition) " !== " (ls-compile nil)
- " ? " (ls-compile true)
- " : " (ls-compile false)
+ " ? " (ls-compile true *multiple-value-p*)
+ " : " (ls-compile false *multiple-value-p*)
")"))
-(defvar *lambda-list-keywords* '(&optional &rest))
+(defvar *lambda-list-keywords* '(&optional &rest &key))
(defun list-until-keyword (list)
(if (or (null list) (member (car list) *lambda-list-keywords*))
nil
(cons (car list) (list-until-keyword (cdr list)))))
+(defun lambda-list-section (keyword lambda-list)
+ (list-until-keyword (cdr (member keyword lambda-list))))
+
(defun lambda-list-required-arguments (lambda-list)
(list-until-keyword lambda-list))
(defun lambda-list-optional-arguments-with-default (lambda-list)
- (mapcar #'ensure-list (list-until-keyword (cdr (member '&optional lambda-list)))))
+ (mapcar #'ensure-list (lambda-list-section '&optional lambda-list)))
(defun lambda-list-optional-arguments (lambda-list)
(mapcar #'car (lambda-list-optional-arguments-with-default lambda-list)))
(defun lambda-list-rest-argument (lambda-list)
- (let ((rest (list-until-keyword (cdr (member '&rest lambda-list)))))
+ (let ((rest (lambda-list-section '&rest lambda-list)))
(when (cdr rest)
(error "Bad lambda-list"))
(car rest)))
+(defun lambda-list-keyword-arguments-canonical (lambda-list)
+ (flet ((canonalize (keyarg)
+ ;; Build a canonical keyword argument descriptor, filling
+ ;; the optional fields. The result is a list of the form
+ ;; ((keyword-name var) init-form).
+ (let* ((arg (ensure-list keyarg))
+ (init-form (cadr arg))
+ var
+ keyword-name)
+ (if (listp (car arg))
+ (setq var (cadr (car arg))
+ keyword-name (car (car arg)))
+ (setq var (car arg)
+ keyword-name (intern (symbol-name (car arg)) "KEYWORD")))
+ `((,keyword-name ,var) ,init-form))))
+ (mapcar #'canonalize (lambda-list-section '&key lambda-list))))
+
+(defun lambda-list-keyword-arguments (lambda-list)
+ (mapcar (lambda (keyarg) (second (first keyarg)))
+ (lambda-list-keyword-arguments-canonical lambda-list)))
(defun lambda-docstring-wrapper (docstring &rest strs)
(if docstring
"return func;" *newline*)
(join strs)))
-(define-compilation lambda (lambda-list &rest body)
+(defun lambda-check-argument-count
+ (n-required-arguments n-optional-arguments rest-p)
+ ;; Note: Remember that we assume that the number of arguments of a
+ ;; call is at least 1 (the values argument).
+ (let ((min (1+ n-required-arguments))
+ (max (if rest-p 'n/a (+ 1 n-required-arguments n-optional-arguments))))
+ (block nil
+ ;; Special case: a positive exact number of arguments.
+ (when (and (< 1 min) (eql min max))
+ (return (concat "checkArgs(arguments, " (integer-to-string min) ");" *newline*)))
+ ;; General case:
+ (concat
+ (if (< 1 min)
+ (concat "checkArgsAtLeast(arguments, " (integer-to-string min) ");" *newline*)
+ "")
+ (if (numberp max)
+ (concat "checkArgsAtMost(arguments, " (integer-to-string max) ");" *newline*)
+ "")))))
+
+(defun compile-lambda-optional (lambda-list)
+ (let* ((optional-arguments (lambda-list-optional-arguments lambda-list))
+ (n-required-arguments (length (lambda-list-required-arguments lambda-list)))
+ (n-optional-arguments (length optional-arguments)))
+ (if optional-arguments
+ (concat "switch(arguments.length-1){" *newline*
+ (let ((optional-and-defaults
+ (lambda-list-optional-arguments-with-default lambda-list))
+ (cases nil)
+ (idx 0))
+ (progn
+ (while (< idx n-optional-arguments)
+ (let ((arg (nth idx optional-and-defaults)))
+ (push (concat "case "
+ (integer-to-string (+ idx n-required-arguments)) ":" *newline*
+ (translate-variable (car arg))
+ "="
+ (ls-compile (cadr arg))
+ ";" *newline*)
+ cases)
+ (incf idx)))
+ (push (concat "default: break;" *newline*) cases)
+ (join (reverse cases))))
+ "}" *newline*)
+ "")))
+
+(defun compile-lambda-rest (lambda-list)
+ (let ((n-required-arguments (length (lambda-list-required-arguments lambda-list)))
+ (n-optional-arguments (length (lambda-list-optional-arguments lambda-list)))
+ (rest-argument (lambda-list-rest-argument lambda-list)))
+ (if rest-argument
+ (let ((js!rest (translate-variable rest-argument)))
+ (concat "var " js!rest "= " (ls-compile nil) ";" *newline*
+ "for (var i = arguments.length-1; i>="
+ (integer-to-string (+ 1 n-required-arguments n-optional-arguments))
+ "; i--)" *newline*
+ (indent js!rest " = "
+ "{car: arguments[i], cdr: ") js!rest "};"
+ *newline*))
+ "")))
+
+(defun compile-lambda-parse-keywords (lambda-list)
+ (let ((n-required-arguments
+ (length (lambda-list-required-arguments lambda-list)))
+ (n-optional-arguments
+ (length (lambda-list-optional-arguments lambda-list)))
+ (keyword-arguments
+ (lambda-list-keyword-arguments-canonical lambda-list)))
+ (concat
+ "var i;" *newline*
+ ;; Declare variables
+ (mapconcat (lambda (arg)
+ (let ((var (second (car arg))))
+ (concat "var " (translate-variable var) "; " *newline*)))
+ keyword-arguments)
+ ;; Parse keywords
+ (flet ((parse-keyword (keyarg)
+ ;; ((keyword-name var) init-form)
+ (concat "for (i="
+ (integer-to-string (+ 1 n-required-arguments n-optional-arguments))
+ "; i<arguments.length; i+=2){" *newline*
+ (indent
+ "if (arguments[i] === " (ls-compile (caar keyarg)) "){" *newline*
+ (indent (translate-variable (cadr (car keyarg)))
+ " = arguments[i+1];"
+ *newline*
+ "break;" *newline*)
+ "}" *newline*)
+ "}" *newline*
+ ;; Default value
+ "if (i == arguments.length){" *newline*
+ (indent
+ (translate-variable (cadr (car keyarg)))
+ " = "
+ (ls-compile (cadr keyarg))
+ ";" *newline*)
+ "}" *newline*)))
+ (mapconcat #'parse-keyword keyword-arguments))
+ ;; Check for unknown keywords
+ (if (null keyword-arguments)
+ ""
+ (concat "for (i="
+ (integer-to-string (+ 1 n-required-arguments n-optional-arguments))
+ "; i<arguments.length; i+=2){" *newline*
+ (indent "if ("
+ (join (mapcar (lambda (x)
+ (concat "arguments[i] !== " (ls-compile (caar x))))
+ keyword-arguments)
+ " && ")
+ ")" *newline*
+ (indent
+ "throw 'Unknown keyword argument ' + arguments[i].name;" *newline*))
+ "}" *newline*)))))
+
+(defun compile-lambda (lambda-list body)
(let ((required-arguments (lambda-list-required-arguments lambda-list))
(optional-arguments (lambda-list-optional-arguments lambda-list))
- (rest-argument (lambda-list-rest-argument lambda-list))
+ (keyword-arguments (lambda-list-keyword-arguments lambda-list))
+ (rest-argument (lambda-list-rest-argument lambda-list))
documentation)
;; Get the documentation string for the lambda function
(when (and (stringp (car body))
(*environment* (extend-local-env
(append (ensure-list rest-argument)
required-arguments
- optional-arguments))))
+ optional-arguments
+ keyword-arguments))))
(lambda-docstring-wrapper
documentation
"(function ("
- (join (mapcar #'translate-variable
- (append required-arguments optional-arguments))
+ (join (cons "values"
+ (mapcar #'translate-variable
+ (append required-arguments optional-arguments)))
",")
"){" *newline*
- ;; Check number of arguments
(indent
- (if required-arguments
- (concat "if (arguments.length < " (integer-to-string n-required-arguments)
- ") throw 'too few arguments';" *newline*)
- "")
- (if (not rest-argument)
- (concat "if (arguments.length > "
- (integer-to-string (+ n-required-arguments n-optional-arguments))
- ") throw 'too many arguments';" *newline*)
- "")
- ;; Optional arguments
- (if optional-arguments
- (concat "switch(arguments.length){" *newline*
- (let ((optional-and-defaults
- (lambda-list-optional-arguments-with-default lambda-list))
- (cases nil)
- (idx 0))
- (progn
- (while (< idx n-optional-arguments)
- (let ((arg (nth idx optional-and-defaults)))
- (push (concat "case "
- (integer-to-string (+ idx n-required-arguments)) ":" *newline*
- (translate-variable (car arg))
- "="
- (ls-compile (cadr arg))
- ";" *newline*)
- cases)
- (incf idx)))
- (push (concat "default: break;" *newline*) cases)
- (join (reverse cases))))
- "}" *newline*)
- "")
- ;; &rest/&body argument
- (if rest-argument
- (let ((js!rest (translate-variable rest-argument)))
- (concat "var " js!rest "= " (ls-compile nil) ";" *newline*
- "for (var i = arguments.length-1; i>="
- (integer-to-string (+ n-required-arguments n-optional-arguments))
- "; i--)" *newline*
- (indent js!rest " = "
- "{car: arguments[i], cdr: ") js!rest "};"
- *newline*))
- "")
- ;; Body
- (ls-compile-block body t)) *newline*
+ ;; Check number of arguments
+ (lambda-check-argument-count n-required-arguments
+ n-optional-arguments
+ (or rest-argument keyword-arguments))
+ (compile-lambda-optional lambda-list)
+ (compile-lambda-rest lambda-list)
+ (compile-lambda-parse-keywords lambda-list)
+ (let ((*multiple-value-p* t))
+ (ls-compile-block body t)))
"})"))))
+
(defun setq-pair (var val)
(let ((b (lookup-in-lexenv var *environment* 'variable)))
- (if (eq (binding-type b) 'lexical-variable)
+ (if (and (eq (binding-type b) 'variable)
+ (not (member 'special (binding-declarations b)))
+ (not (member 'constant (binding-declarations b))))
(concat (binding-value b) " = " (ls-compile val))
(ls-compile `(set ',var ,val)))))
(concat "(" var " = " (ls-compile val) ")"))
+
;;; Literals
(defun escape-string (string)
(let ((output "")
((symbolp sexp)
(or (cdr (assoc sexp *literal-symbols*))
(let ((v (genlit))
- (s #+common-lisp (concat "{name: \"" (escape-string (symbol-name sexp)) "\"}")
- #+ecmalisp
- (let ((package (symbol-package sexp)))
- (if (null package)
- (concat "{name: \"" (escape-string (symbol-name sexp)) "\"}")
- (ls-compile `(intern ,(symbol-name sexp) ,(package-name package)))))))
+ (s #+common-lisp
+ (let ((package (symbol-package sexp)))
+ (if (eq package (find-package "KEYWORD"))
+ (concat "{name: \"" (escape-string (symbol-name sexp))
+ "\", 'package': '" (package-name package) "'}")
+ (concat "{name: \"" (escape-string (symbol-name sexp)) "\"}")))
+ #+ecmalisp
+ (let ((package (symbol-package sexp)))
+ (if (null package)
+ (concat "{name: \"" (escape-string (symbol-name sexp)) "\"}")
+ (ls-compile `(intern ,(symbol-name sexp) ,(package-name package)))))))
(push (cons sexp v) *literal-symbols*)
(toplevel-compilation (concat "var " v " = " s))
v)))
((consp sexp)
- (let ((c (concat "{car: " (literal (car sexp) t) ", "
- "cdr: " (literal (cdr sexp) t) "}")))
+ (let* ((head (butlast sexp))
+ (tail (last sexp))
+ (c (concat "QIList("
+ (join-trailing (mapcar (lambda (x) (literal x t)) head) ",")
+ (literal (car tail) t)
+ ","
+ (literal (cdr tail) t)
+ ")")))
(if recursive
c
(let ((v (genlit)))
- (toplevel-compilation (concat "var " v " = " c))
- v))))
+ (toplevel-compilation (concat "var " v " = " c))
+ v))))
((arrayp sexp)
(let ((elements (vector-to-list sexp)))
(let ((c (concat "[" (join (mapcar #'literal elements) ", ") "]")))
(define-compilation function (x)
(cond
((and (listp x) (eq (car x) 'lambda))
- (ls-compile x))
+ (compile-lambda (cadr x) (cddr x)))
((symbolp x)
- (ls-compile `(symbol-function ',x)))))
+ (let ((b (lookup-in-lexenv x *environment* 'function)))
+ (if b
+ (binding-value b)
+ (ls-compile `(symbol-function ',x)))))))
+
+(defun make-function-binding (fname)
+ (make-binding fname 'function (gvarname fname)))
+
+(defun compile-function-definition (list)
+ (compile-lambda (car list) (cdr list)))
+
+(defun translate-function (name)
+ (let ((b (lookup-in-lexenv name *environment* 'function)))
+ (binding-value b)))
+
+(define-compilation flet (definitions &rest body)
+ (let* ((fnames (mapcar #'car definitions))
+ (fbody (mapcar #'cdr definitions))
+ (cfuncs (mapcar #'compile-function-definition fbody))
+ (*environment*
+ (extend-lexenv (mapcar #'make-function-binding fnames)
+ *environment*
+ 'function)))
+ (concat "(function("
+ (join (mapcar #'translate-function fnames) ",")
+ "){" *newline*
+ (let ((body (ls-compile-block body t)))
+ (indent body))
+ "})(" (join cfuncs ",") ")")))
+
+(define-compilation labels (definitions &rest body)
+ (let* ((fnames (mapcar #'car definitions))
+ (*environment*
+ (extend-lexenv (mapcar #'make-function-binding fnames)
+ *environment*
+ 'function)))
+ (js!selfcall
+ (mapconcat (lambda (func)
+ (concat "var " (translate-function (car func))
+ " = " (compile-lambda (cadr func) (cddr func))
+ ";" *newline*))
+ definitions)
+ (ls-compile-block body t))))
+
+
+
+(defvar *compiling-file* nil)
(define-compilation eval-when-compile (&rest body)
- (eval (cons 'progn body))
- nil)
+ (if *compiling-file*
+ (progn
+ (eval (cons 'progn body))
+ nil)
+ (ls-compile `(progn ,@body))))
(defmacro define-transformation (name args form)
`(define-compilation ,name ,args
(ls-compile ,form)))
(define-compilation progn (&rest body)
- (js!selfcall (ls-compile-block body t)))
+ (if (null (cdr body))
+ (ls-compile (car body) *multiple-value-p*)
+ (js!selfcall (ls-compile-block body t))))
(defun special-variable-p (x)
(and (claimp x 'variable 'special) t))
;;; Return the code to initialize BINDING, and push it extending the
-;;; current lexical environment if the variable is special.
+;;; current lexical environment if the variable is not special.
(defun let*-initialize-value (binding)
(let ((var (first binding))
(value (second binding)))
store))
"}" *newline*)))
-
(define-compilation let* (bindings &rest body)
(let ((bindings (mapcar #'ensure-list bindings))
(*environment* (copy-lexenv *environment*)))
(defvar *block-counter* 0)
(define-compilation block (name &rest body)
- (let ((tr (integer-to-string (incf *block-counter*))))
- (let ((b (make-binding name 'block tr)))
- (js!selfcall
- "try {" *newline*
- (let ((*environment* (extend-lexenv (list b) *environment* 'block)))
- (indent "return " (ls-compile `(progn ,@body)) ";" *newline*))
- "}" *newline*
- "catch (cf){" *newline*
- " if (cf.type == 'block' && cf.id == " tr ")" *newline*
- " return cf.value;" *newline*
- " else" *newline*
- " throw cf;" *newline*
- "}" *newline*))))
+ (let* ((tr (integer-to-string (incf *block-counter*)))
+ (b (make-binding name 'block tr)))
+ (when *multiple-value-p*
+ (push-binding-declaration 'multiple-value b))
+ (let* ((*environment* (extend-lexenv (list b) *environment* 'block))
+ (cbody (ls-compile-block body t)))
+ (if (member 'used (binding-declarations b))
+ (js!selfcall
+ "try {" *newline*
+ (indent cbody)
+ "}" *newline*
+ "catch (cf){" *newline*
+ " if (cf.type == 'block' && cf.id == " tr ")" *newline*
+ (if *multiple-value-p*
+ " return values.apply(this, forcemv(cf.values));"
+ " return cf.values;")
+ *newline*
+ " else" *newline*
+ " throw cf;" *newline*
+ "}" *newline*)
+ (js!selfcall cbody)))))
(define-compilation return-from (name &optional value)
- (let ((b (lookup-in-lexenv name *environment* 'block)))
- (if b
- (js!selfcall
- "throw ({"
- "type: 'block', "
- "id: " (binding-value b) ", "
- "value: " (ls-compile value) ", "
- "message: 'Return from unknown block " (symbol-name name) ".'"
- "})")
- (error (concat "Unknown block `" (symbol-name name) "'.")))))
-
+ (let* ((b (lookup-in-lexenv name *environment* 'block))
+ (multiple-value-p (member 'multiple-value (binding-declarations b))))
+ (when (null b)
+ (error (concat "Unknown block `" (symbol-name name) "'.")))
+ (push-binding-declaration 'used b)
+ (js!selfcall
+ (if multiple-value-p
+ (concat "var values = mv;" *newline*)
+ "")
+ "throw ({"
+ "type: 'block', "
+ "id: " (binding-value b) ", "
+ "values: " (ls-compile value multiple-value-p) ", "
+ "message: 'Return from unknown block " (symbol-name name) ".'"
+ "})")))
(define-compilation catch (id &rest body)
(js!selfcall
"var id = " (ls-compile id) ";" *newline*
"try {" *newline*
- (indent "return " (ls-compile `(progn ,@body))
- ";" *newline*)
+ (indent (ls-compile-block body t)) *newline*
"}" *newline*
"catch (cf){" *newline*
" if (cf.type == 'catch' && cf.id == id)" *newline*
- " return cf.value;" *newline*
+ (if *multiple-value-p*
+ " return values.apply(this, forcemv(cf.values));"
+ " return pv.apply(this, forcemv(cf.values));")
+ *newline*
" else" *newline*
" throw cf;" *newline*
"}" *newline*))
(define-compilation throw (id value)
(js!selfcall
+ "var values = mv;" *newline*
"throw ({"
"type: 'catch', "
"id: " (ls-compile id) ", "
- "value: " (ls-compile value) ", "
+ "values: " (ls-compile value t) ", "
"message: 'Throw uncatched.'"
"})"))
"})" *newline*)
(error (concat "Unknown tag `" n "'.")))))
-
(define-compilation unwind-protect (form &rest clean-up)
(js!selfcall
"var ret = " (ls-compile nil) ";" *newline*
"}" *newline*
"return ret;" *newline*))
+(define-compilation multiple-value-call (func-form &rest forms)
+ (js!selfcall
+ "var func = " (ls-compile func-form) ";" *newline*
+ "var args = [" (if *multiple-value-p* "values" "pv") "];" *newline*
+ "return "
+ (js!selfcall
+ "var values = mv;" *newline*
+ "var vs;" *newline*
+ (mapconcat (lambda (form)
+ (concat "vs = " (ls-compile form t) ";" *newline*
+ "if (typeof vs === 'object' && 'multiple-value' in vs)" *newline*
+ (indent "args = args.concat(vs);" *newline*)
+ "else" *newline*
+ (indent "args.push(vs);" *newline*)))
+ forms)
+ "return func.apply(window, args);" *newline*) ";" *newline*))
+
+(define-compilation multiple-value-prog1 (first-form &rest forms)
+ (js!selfcall
+ "var args = " (ls-compile first-form *multiple-value-p*) ";" *newline*
+ (ls-compile-block forms)
+ "return args;" *newline*))
+
+
;;; A little backquote implementation without optimizations of any
;;; kind for ecmalisp.
(ls-compile nil)
": tmp.cdr;" *newline*))
-(define-builtin setcar (x new)
+(define-builtin rplaca (x new)
(type-check (("x" "object" x))
- (concat "(x.car = " new ")")))
+ (concat "(x.car = " new ", x)")))
-(define-builtin setcdr (x new)
+(define-builtin rplacd (x new)
(type-check (("x" "object" x))
- (concat "(x.cdr = " new ")")))
+ (concat "(x.cdr = " new ", x)")))
(define-builtin symbolp (x)
(js!bool
(define-raw-builtin funcall (func &rest args)
(concat "(" (ls-compile func) ")("
- (join (mapcar #'ls-compile args)
+ (join (cons (if *multiple-value-p* "values" "pv")
+ (mapcar #'ls-compile args))
", ")
")"))
(last (car (last args))))
(js!selfcall
"var f = " (ls-compile func) ";" *newline*
- "var args = [" (join (mapcar #'ls-compile args)
+ "var args = [" (join (cons (if *multiple-value-p* "values" "pv")
+ (mapcar #'ls-compile args))
", ")
"];" *newline*
"var tail = (" (ls-compile last) ");" *newline*
(define-builtin js-eval (string)
(type-check (("string" "string" string))
- "eval.apply(window, [string])"))
+ (if *multiple-value-p*
+ (js!selfcall
+ "var v = eval.apply(window, [string]);" *newline*
+ "if (typeof v !== 'object' || !('multiple-value' in v)){" *newline*
+ (indent "v = [v];" *newline*
+ "v['multiple-value'] = true;" *newline*)
+ "}" *newline*
+ "return values.apply(this, v);" *newline*)
+ "eval.apply(window, [string])")))
(define-builtin error (string)
(js!selfcall "throw " string ";" *newline*))
(define-builtin get-unix-time ()
(concat "(Math.round(new Date() / 1000))"))
+(define-builtin values-array (array)
+ (if *multiple-value-p*
+ (concat "values.apply(this, " array ")")
+ (concat "pv.apply(this, " array ")")))
+
+(define-raw-builtin values (&rest args)
+ (if *multiple-value-p*
+ (concat "values(" (join (mapcar #'ls-compile args) ", ") ")")
+ (concat "pv(" (join (mapcar #'ls-compile args) ", ") ")")))
(defun macro (x)
(and (symbolp x)
form)))
(defun compile-funcall (function args)
- (if (and (symbolp function)
- (claimp function 'function 'non-overridable))
- (concat (ls-compile `',function) ".fvalue("
- (join (mapcar #'ls-compile args)
- ", ")
- ")")
- (concat (ls-compile `#',function) "("
- (join (mapcar #'ls-compile args)
- ", ")
- ")")))
+ (let* ((values-funcs (if *multiple-value-p* "values" "pv"))
+ (arglist (concat "(" (join (cons values-funcs (mapcar #'ls-compile args)) ", ") ")")))
+ (cond
+ ((translate-function function)
+ (concat (translate-function function) arglist))
+ ((and (symbolp function)
+ #+ecmalisp (eq (symbol-package function) (find-package "COMMON-LISP"))
+ #+common-lisp t)
+ (concat (ls-compile `',function) ".fvalue" arglist))
+ (t
+ (concat (ls-compile `#',function) arglist)))))
(defun ls-compile-block (sexps &optional return-last-p)
(if return-last-p
(concat (ls-compile-block (butlast sexps))
- "return " (ls-compile (car (last sexps))) ";")
+ "return " (ls-compile (car (last sexps)) *multiple-value-p*) ";")
(join-trailing
(remove-if #'null-or-empty-p (mapcar #'ls-compile sexps))
(concat ";" *newline*))))
-(defun ls-compile (sexp)
- (cond
- ((symbolp sexp)
- (let ((b (lookup-in-lexenv sexp *environment* 'variable)))
- (cond
- ((and b (not (member 'special (binding-declarations b))))
- (binding-value b))
- ((or (keywordp sexp)
- (member 'constant (binding-declarations b)))
- (concat (ls-compile `',sexp) ".value"))
- (t
- (ls-compile `(symbol-value ',sexp))))))
- ((integerp sexp) (integer-to-string sexp))
- ((stringp sexp) (concat "\"" (escape-string sexp) "\""))
- ((arrayp sexp) (literal sexp))
- ((listp sexp)
- (let ((name (car sexp))
- (args (cdr sexp)))
- (cond
- ;; Special forms
- ((assoc name *compilations*)
- (let ((comp (second (assoc name *compilations*))))
- (apply comp args)))
- ;; Built-in functions
- ((and (assoc name *builtins*)
- (not (claimp name 'function 'notinline)))
- (let ((comp (second (assoc name *builtins*))))
- (apply comp args)))
- (t
- (if (macro name)
- (ls-compile (ls-macroexpand-1 sexp))
- (compile-funcall name args))))))
- (t
- (error "How should I compile this?"))))
+(defun ls-compile (sexp &optional multiple-value-p)
+ (let ((*multiple-value-p* multiple-value-p))
+ (cond
+ ((symbolp sexp)
+ (let ((b (lookup-in-lexenv sexp *environment* 'variable)))
+ (cond
+ ((and b (not (member 'special (binding-declarations b))))
+ (binding-value b))
+ ((or (keywordp sexp)
+ (member 'constant (binding-declarations b)))
+ (concat (ls-compile `',sexp) ".value"))
+ (t
+ (ls-compile `(symbol-value ',sexp))))))
+ ((integerp sexp) (integer-to-string sexp))
+ ((stringp sexp) (concat "\"" (escape-string sexp) "\""))
+ ((arrayp sexp) (literal sexp))
+ ((listp sexp)
+ (let ((name (car sexp))
+ (args (cdr sexp)))
+ (cond
+ ;; Special forms
+ ((assoc name *compilations*)
+ (let ((comp (second (assoc name *compilations*))))
+ (apply comp args)))
+ ;; Built-in functions
+ ((and (assoc name *builtins*)
+ (not (claimp name 'function 'notinline)))
+ (let ((comp (second (assoc name *builtins*))))
+ (apply comp args)))
+ (t
+ (if (macro name)
+ (ls-compile (ls-macroexpand-1 sexp) multiple-value-p)
+ (compile-funcall name args))))))
+ (t
+ (error "How should I compile this?")))))
-(defun ls-compile-toplevel (sexp)
+(defun ls-compile-toplevel (sexp &optional multiple-value-p)
(let ((*toplevel-compilations* nil))
(cond
((and (consp sexp) (eq (car sexp) 'progn))
- (let ((subs (mapcar #'ls-compile-toplevel (cdr sexp))))
+ (let ((subs (mapcar (lambda (s)
+ (ls-compile-toplevel s t))
+ (cdr sexp))))
(join (remove-if #'null-or-empty-p subs))))
(t
- (let ((code (ls-compile sexp)))
+ (let ((code (ls-compile sexp multiple-value-p)))
(concat (join-trailing (get-toplevel-compilations)
(concat ";" *newline*))
(if code
#+ecmalisp
(progn
- (defmacro with-compilation-unit (&body body)
- `(prog1
- (progn
- (setq *compilation-unit-checks* nil)
- ,@body)
- (dolist (check *compilation-unit-checks*)
- (funcall check))))
-
(defun eval (x)
- (let ((code
- (with-compilation-unit
- (ls-compile-toplevel x))))
- (js-eval code)))
-
- (export '(&rest &optional &body * *gensym-counter* *package* + - / 1+ 1- < <= =
- = > >= and append apply aref arrayp aset assoc atom block boundp
- boundp butlast caar cadddr caddr cadr car car case catch cdar cdddr
- cddr cdr cdr char char-code char= code-char cond cons consp copy-list
- decf declaim defparameter defun defmacro defvar digit-char-p disassemble
- documentation dolist dotimes ecase eq eql equal error eval every
- export fdefinition find-package find-symbol first fourth fset funcall
- function functionp gensym get-universal-time go identity if in-package
- incf integerp integerp intern keywordp lambda last length let let*
- list-all-packages list listp make-array make-package make-symbol
- mapcar member minusp mod nil not nth nthcdr null numberp or
- package-name package-use-list packagep plusp prin1-to-string print
- proclaim prog1 prog2 progn psetq push quote remove remove-if
- remove-if-not return return-from revappend reverse second set setq
- some string-upcase string string= stringp subseq symbol-function
- symbol-name symbol-package symbol-plist symbol-value symbolp t tagbody
- third throw truncate unless unwind-protect variable warn when
- write-line write-string zerop))
+ (js-eval (ls-compile-toplevel x t)))
+
+ (export '(&rest &key &optional &body * *gensym-counter* *package* +
+ - / 1+ 1- < <= = = > >= and append apply aref arrayp assoc
+ atom block boundp boundp butlast caar cadddr caddr cadr
+ car car case catch cdar cdddr cddr cdr cdr char char-code
+ char= code-char cond cons consp constantly copy-list decf
+ declaim defconstant defparameter defun defmacro defvar
+ digit-char digit-char-p disassemble do do* documentation
+ dolist dotimes ecase eq eql equal error eval every export
+ fdefinition find-package find-symbol first flet fourth
+ fset funcall function functionp gensym get-universal-time
+ go identity if in-package incf integerp integerp intern
+ keywordp labels lambda last length let let*
+ list-all-packages list listp make-array make-package
+ make-symbol mapcar member minusp mod multiple-value-bind
+ multiple-value-call multiple-value-list
+ multiple-value-prog1 nil not nth nthcdr null numberp or
+ package-name package-use-list packagep parse-integer plusp
+ prin1-to-string print proclaim prog1 prog2 progn psetq
+ push quote remove remove-if remove-if-not return
+ return-from revappend reverse rplaca rplacd second set
+ setq some string-upcase string string= stringp subseq
+ symbol-function symbol-name symbol-package symbol-plist
+ symbol-value symbolp t tagbody third throw truncate unless
+ unwind-protect values values-list variable warn when
+ write-line write-string zeropt))
(setq *package* *user-package*)
(js-vset "lisp.read" #'ls-read-from-string)
(js-vset "lisp.print" #'prin1-to-string)
(js-vset "lisp.eval" #'eval)
- (js-vset "lisp.compile" #'ls-compile-toplevel)
+ (js-vset "lisp.compile" (lambda (s) (ls-compile-toplevel s t)))
(js-vset "lisp.evalString" (lambda (str) (eval (ls-read-from-string str))))
- (js-vset "lisp.compileString" (lambda (str) (ls-compile-toplevel (ls-read-from-string str))))
+ (js-vset "lisp.compileString" (lambda (str) (ls-compile-toplevel (ls-read-from-string str) t)))
;; Set the initial global environment to be equal to the host global
;; environment at this point of the compilation.
seq)))
(defun ls-compile-file (filename output)
- (setq *compilation-unit-checks* nil)
- (with-open-file (out output :direction :output :if-exists :supersede)
- (let* ((source (read-whole-file filename))
- (in (make-string-stream source)))
- (loop
- for x = (ls-read in)
- until (eq x *eof*)
- for compilation = (ls-compile-toplevel x)
- when (plusp (length compilation))
- do (write-string compilation out))
- (dolist (check *compilation-unit-checks*)
- (funcall check))
- (setq *compilation-unit-checks* nil))))
+ (let ((*compiling-file* t))
+ (with-open-file (out output :direction :output :if-exists :supersede)
+ (write-string (read-whole-file "prelude.js") out)
+ (let* ((source (read-whole-file filename))
+ (in (make-string-stream source)))
+ (loop
+ for x = (ls-read in)
+ until (eq x *eof*)
+ for compilation = (ls-compile-toplevel x)
+ when (plusp (length compilation))
+ do (write-string compilation out))))))
(defun bootstrap ()
(setq *environment* (make-lexenv))